#include<iostream>
using namespace std;
void swap (int *p1,int *p2)
{
    int temp;
    temp = *p1;
    *p1=*p2;
    *p2=temp;
}
int main()
{
    int i=3,j=5;
    swap(&i,&j);
    cout<<i<<","<<j<<endl;
    return 0;
}